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Journal of Research of the National Bureau of Standards-A. Physics and Chemistry

Date

1962-09

Language

English

Keywords

adipate polyester; air-liquid; ethylene adipate; propylene adipate

Abstract

The surface pressure-area isotherms at 24.5 °C are reported for poly (ethylene adipate), poly(trimethylene adipate), and poly(propylene adipate), spread as monolayers at air-aqueous interfaces. The monolayers were spread on distilled water and 0.01 N HCl, using benzene, chloroform, and acetone as spreading solvents. Poly(propylene adipate) was the least compressible of the three, and poly(ethylene adipate) the most. Poly (propylene adipate) did not collapse at the highest pressures studied. The spreading characteristics of both poly(ethylene adipate) and poly (propylene adipate) were independent of the amount of material used. The spreading of poly(trimethylene adipate) appeared to depend upon the spreading solvent. The effect of structure on the surface pressure--area isotherms and the specific areas for each polymer are discussed.

Publisher

National Bureau of Standards

ISSN

022-4332

Volume

66A

Issue

5

Page

439

Cite

J. Res. Bur. Stand., Vol. 66A, No. 5, p. 439

Rights

The Journal of Research of the National Institute of Standards and Technology is a publication of the U.S. Government. The papers are in the public domain and are not subject to copyright in the United States. However, please pay special attention to the individual works to make sure there are no copyright restrictions indicated. Individual works may require securing other permissions from the original copyright holder.